You will get Backend Development – C# .NET Stack | C# Developer | .NET Developer | MSSQL
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Project details
‼️ Please don't buy the project; instead, contact me via Upwork 📩
We can build a reliable and scalable backend for your project.
My team and I work daily with the C# / .NET stack and know how to:
Design clean architectures and implement APIs (REST, GraphQL, gRPC).
Set up and optimize databases (MSSQL, PostgreSQL, MongoDB, Redis).
Build messaging and background processing with Kafka, RabbitMQ, SignalR, and Hangfire.
Deploy and maintain applications in the cloud (AWS, GCP, Azure, Docker, Kubernetes, CI/CD).
We’ve already delivered projects in different domains — finance, law, manufacturing, HR, CRM/ERP, and real-time communication platforms — and we’re ready to do the same for your business.
👉 Let’s talk about your project and start building the backend you need — 📩
Know a bunch about these technologies: .NET Core, ASP.NET Core, MS SQL, Redis, PostgreSQL, Entity Framework Core, Docker, Microservices, Hangfire, Kafka, SignalR, Dapper, Redis, IdentityServer, xUnit, N-Layer, CQRS, MongoDB, Automapper. | Microsoft developer, Backend Developer, Database developer, C# Developer, .NET Developer, Microsoft Desktop Developer, Desktop Application Developer, C#/.NET Developer. C# Guru
We can build a reliable and scalable backend for your project.
My team and I work daily with the C# / .NET stack and know how to:
Design clean architectures and implement APIs (REST, GraphQL, gRPC).
Set up and optimize databases (MSSQL, PostgreSQL, MongoDB, Redis).
Build messaging and background processing with Kafka, RabbitMQ, SignalR, and Hangfire.
Deploy and maintain applications in the cloud (AWS, GCP, Azure, Docker, Kubernetes, CI/CD).
We’ve already delivered projects in different domains — finance, law, manufacturing, HR, CRM/ERP, and real-time communication platforms — and we’re ready to do the same for your business.
👉 Let’s talk about your project and start building the backend you need — 📩
Know a bunch about these technologies: .NET Core, ASP.NET Core, MS SQL, Redis, PostgreSQL, Entity Framework Core, Docker, Microservices, Hangfire, Kafka, SignalR, Dapper, Redis, IdentityServer, xUnit, N-Layer, CQRS, MongoDB, Automapper. | Microsoft developer, Backend Developer, Database developer, C# Developer, .NET Developer, Microsoft Desktop Developer, Desktop Application Developer, C#/.NET Developer. C# Guru
Programming Languages
JavaScript, ASP.NET, C#Coding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$6,000
|
Standard
$15,000
|
Advanced
$30,000
|
|---|---|---|---|
| Delivery Time | 14 days | 45 days | 70 days |
Number of Revisions | 1 | 1 | 2 |
Number of Pages | 7 | 14 | 20 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$500
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DK
Darya K.
Oct 17, 2025
Senior .NET Developer | Short-term; Option for Ongoing Work
Excellent experience working with Eugene and the Modsen team! They showed strong technical skills and smooth communication. Professional and easy to work with. Highly recommended!
About Eugene
C# .NET developer | Full Stack Developer | DevOps
100%
Job Success
Warsaw, Poland - 1:51 am local time
Are you in search of a Senior .NET Developer who can build, scale, and maintain resilient software systems for web, desktop, and cloud-based applications? You’re in the right place. I’m Eugene - a seasoned .NET developer with deep expertise in full-stack architecture, Azure-based services, REST APIs, relational databases, and scalable backend platforms.
Over the years, I’ve taken the lead on mission-critical software projects for top-tier clients, including Microsoft and Shell. I’ve delivered a wide array of business solutions using C#, ASP.NET Core, .NET Stack, Entity Framework, SQL Server, PostgreSQL, WPF, WinForms, and Azure App Services. My portfolio includes scalable web platforms, API-driven microservices, high-performance desktop tools, and cloud-native architectures powered by Docker and CI/CD workflows.
👨💻 Areas Where I Excel:
✅ Full-Stack .NET Development
I craft backend and frontend solutions with ASP.NET Core, .NET 6/8, MVC, Razor Pages, and Web API. I also bring experience with Blazor, Angular, and React, following clean architecture and SOLID design.
✅ Desktop Application Engineering
I build Windows apps using WPF, WinForms, MVVM, and Telerik controls. These include hardware integrations, PDF/image processing, and offline functionality.
✅ API Development & Integration
I create and connect REST APIs with third-party services such as Stripe, Twilio, SendGrid, and CRM systems. I also develop custom APIs for tools like print services and internal dashboards.
✅ Database Architecture & Optimization
I design performant database schemas and manage SQL Server, PostgreSQL, MySQL, and Cosmos DB. I focus on query performance, indexing, and schema evolution.
✅ Cloud & DevOps
I deploy apps using Azure App Services, Functions, and CI/CD with GitHub Actions or Azure DevOps. I containerize services with Docker and orchestrate deployments via Kubernetes.
✅ Microservices & Distributed Architecture
I build .NET Core microservices with RabbitMQ, Kafka, and Ocelot. These systems serve web and mobile platforms with real-time and asynchronous communication.
🔍 Key Project Highlights:
iGaming Platform: Built a real-time casino system using .NET Core, SignalR, Kafka, ScyllaDB, ClickHouse, PostgreSQL, ELK stack, and Power BI. Deployed via Docker on AWS.
Loan Automation: Delivered a full-cycle loan platform with .NET Core, OData, EF Core, Azure Service Bus, Hangfire, CosmosDB, Angular, and Power BI.
App Marketplace: Developed a microservice-based SaaS platform with RabbitMQ, Stripe, Angular 6, Ocelot, Autofac, and SQL Server.
Fleet ERP: Built WPF/Angular tracking ERP with EF6, SQL Server, MEF, GIS, and modules for driver behavior, fuel tracking, and maintenance.
Insurance System: Created a UBI platform on ASP.NET Core, AngularJS, Kendo UI, and MS SQL for fraud detection and claims processing.
Outlook CRM: Developed CRM integration for Outlook using ASP.NET MVC, AngularJS, Kendo UI, Azure Services, and hosted on IIS.
Logistics ERP: Led development of a WPF .NET AngularJS ERP for transport tracking, satellite communication, and business ops.
Medical Monitoring: Built a diagnostics app with ASP.NET MVC, DurandalJS, EF, and MS SQL. Hosted securely via IIS.
Delivered enterprise-grade .NET solutions: real-time, cloud, ERP, CRM, fintech, and diagnostics systems.
🛠️ My Technical Toolbox:
I specialize in C# and the .NET ecosystem, including .NET Core, .NET Framework, Web API, MVC, and WinForms. I rely on EF and LINQ for data access and schema control. My database experience covers MS SQL, PostgreSQL, MySQL, MongoDB, Redis, and Cosmos DB. I manage deployments on AWS and Azure, using Azure DevOps, Docker, and Git. For UIs, I use WPF, Blazor, Angular, and React with TypeScript. I also implement secure CI/CD, API integrations, and scalable infrastructure.
Why Teams Work with Me:
✔️ I have over 15 years of professional engineering experience (more than 5 years of experience)
✔️ I possess expertise in both cloud and desktop software solutions
✔️ I have a proven ability to deliver enterprise-level applications
✔️ I possess an in-depth knowledge of DevOps and backend performance tuning
✔️ I can provide AI chatbot (AI Agents) development and workflow automation.
✔️ I have a high ownership, transparency, and quality focus
✔️ My English is fluent, and I can work both with international teams and independently.
I collaborate with clients who value architecture, efficiency, and clean code. Whether your project is just starting or mid-scale, I bring clarity, experience, and technical strength to push it forward.
Let’s connect and bring your vision to life with robust .NET development.
Steps for completing your project
After purchasing the project, send requirements so Eugene can start the project.
Delivery time starts when Eugene receives requirements from you.
Eugene works on your project following the steps below.
Revisions may occur after the delivery date.
Beckend development from scratch
We will assume complete responsibility for the project development.